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57117267 = 3247135029
BaseRepresentation
bin1101100111100…
…0101001010011
310222110212011100
43121320221103
5104110223032
65400115443
71262326434
oct331705123
9128425140
1057117267
112a272059
1217165b83
13baaaacc
14782b48b
15503397c
hex3678a53

57117267 has 12 divisors (see below), whose sum is σ = 84258720. Its totient is φ = 37267728.

The previous prime is 57117227. The next prime is 57117293. The reversal of 57117267 is 76271175.

It is not a de Polignac number, because 57117267 - 27 = 57117139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57117227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67092 + ... + 67937.

It is an arithmetic number, because the mean of its divisors is an integer number (7021560).

Almost surely, 257117267 is an apocalyptic number.

57117267 is a deficient number, since it is larger than the sum of its proper divisors (27141453).

57117267 is a wasteful number, since it uses less digits than its factorization.

57117267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135082 (or 135079 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 57117267 is about 7557.5966417903. The cubic root of 57117267 is about 385.1138517505.

The spelling of 57117267 in words is "fifty-seven million, one hundred seventeen thousand, two hundred sixty-seven".

Divisors: 1 3 9 47 141 423 135029 405087 1215261 6346363 19039089 57117267